Gas-motor.



s. e. WIGELI US. GAS MOTOR. APPLICATION FILED NOV. 22, 1907.

997,887. Patented July 11,1911.

In ve n60;-

snares 4 d imit/E,

SVEN GUS'I'AF WIGELIUS, 0F ESKILSTUNA, SWEDEN.

GAS-MOTOR.

997,887. Original application filed February 7 Specification of Letters Patent. 9, 1906, Serial No. 300,336. Divided be! 22, 1907. Serial No. 403,399.

To all whom it may concern;

Be it known that I, S vnn GUS-'IAF WI- eELIUs, a subject of the King of Sweden, residing at Eskilstuna, Sweden, have invented certain new and useful Improvements in- Gas-Motorsyand I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it specification.

This application is a division of my application Serial No. 300,836, filed February 9, 1906.

The present invention relates to improvements in gas motors, for its ob ect to provide a valve device for use in such compressed up to the the motor, that is, where a gas air mixture ready for combustion is mixed outside of the cylinder.

By means of a valve device the supply of t c fuel is controlled in a well-known manner, so that the speed of supply or the quantity of fuel introduced into the cylinder at each charge is proportional of the power piston and to the degree of fillin Thi invention is particularly adapted to that class of valve d and means of the valve pumped or forced into the cylinder. The outlet of the conduit which conducts the fuel to the valve, for instance at the valve seat or some other part connected to the valve, is kept closed until the valve is opened, so that the fuel only at this moment comes into contact with der, or which has just at that moment been introduced into it. The air entering the cylinder may be given a high temperature without fear of a too early ignition, and

besides, the fuel may enter so rapidly that when the power-stroke moves away from the dead-point position the pressure and the temperature cannot sink so as to render ignition diflicult, or to hinder it. The conduit sion of the combustion to the speed" the air in the cylinconductsthc air and fuel to the valve-seat, s so formed that th e quantity of air passmg the valve-seat is independent of the valve-stroke, as only the quantity of the fuel introduced into the c linder is dependent on said valve-stroke.

In the accompanying drawingsr-Figure l is a longitudinal section of a form of a valve device embodying my invention, some of the parts being shown in 2 a modified form of valve.

The device shown in Fig. 1 consists of two valves, 26 and 27, communicating with the same casing, the valve 26 opening into a chamber 51. This chamber communicates by means of a conduit 16 with an air-compressor or a compressed air receptacle, not

shown, and through pipe 49 said chamber isgases, and thereby clean the cylinder and fill it with air. The valves open in opposite directions, and the means here shown for operating them conagainst a flange on the inside of the pipe ,and with the 0th plate 44 on the spindle. This pl elevation, and Fig.

y fl

ber 47 in the socket 48 of the valve plug tion pressure,

end of the combustion cylinder 15.

but also the space around the valve-spindle 41, into which space the fuel can enter through an orifice 50 in the wall of pipe 40. The compound valve spindle is mounted in the valve plug A which in'turn is mounted in a-seat'plug B that is mounted in the The seat plug carries the flaring valve-seat C whose opening is in alinement with the passage 28, so that the mixed charge, already at igni will pass directly through passage 28 into the cylinder. The quantity of mixture admitted is dependent upon the stroke of the valve. Upon the piston reaching the dead-point the valve 26 is closed and the valve 27 simultaneously opened in consequence of the operation of the controlling cam-roll 18. The opening of valve 27 admits air into chamber 29, which air flows through passage 28 and cleans the power cylinder.

Vit-h the closing of valve 27, pipe 40 is I moved through the action of cam-roll l8, and valve 26, whose stem is connected with the pipe by means of a coiled spring +3, is likewise moved away from the valve-seat.

The pipe during this movement closes the outlet of the fuel conduit if.) and the shoulder d6 on the pipe performs the function of a piston and compresses the charge of fuel in thechamber t7. This compressed fuel escapes from the chamber 4:7 to the interior of pipe 40 through an aperture 50 and acts on the valve-cone .42 so that said conetis forced away from theend of pipe 40 a distance corresponding'to' the space between plate 4 and shoulder 45, and permits the charge of fuel in the pipe to escape into chamber 51 where said charge is suitably mixed with the compressed air commg through passage 16 and passes thence through the open port of valve 26 into cylinder 15. The conduit 16,"serving to conduct compressed air to the chamber .51, is, as shown in the drawingfcontracted, and the volume of compressed air supplied'to said clhamber depends upon the size of the con- According to the modification shown in Fig. 2, the tubular valve-spindle-is not provided-with-a shoulder which serves to conduct the fuel, but cooperates, instead, with a stationary piston 55, projecting into the end. The other end of the tube is formed as a valve-cone and provided with outlets 56 for the fuel, which outlets open against the conical valve-seat.', When the spindle 40 is drawn back the fuel-conduit 49 is either closed by means of a va-lve (not shown) arranged in the pipe 49, or by reason of the opening 57 being closed by the movewrigidly connected to the valve, an oil supply controlling compressed in the valve plug,

I claim 7 l. A valve for" combustion engines comprising a valve port leading to the cylinder of the engine, a valve cooperating'with the port, a hollow stem closed by thevalve, means to permit the valve to move longitudinally and relatively to .the stem, means to supply liquid fuel through the stem when the valve is withdrawn from the port and a supply of air controlled by said valve.

2. A valve for combustion engines comprising a valve port leading to'the cylinder of the engine, a valve cooperating with said port, a hollow stem closed by the valve, a fuel supply chamber surrounding the hollow stem, said stem having a passage connecting the chamber and interior of the stem, means to-permit the valve to move relatively to the hollow stem and a supply for compressed air at the valve controlled thereby.

3. A valve for combustion engines comprising a valve port leading to the cylinder of the engine, a valve cooperating with said" port, a hollow stem closed by the valve, means to permit the'valve to-have movement relatively to its stem, a fuel ,supply' chamber surrounding the stem, said stein having a passage connecting the chamber and interior of the stem, means to move the stem and valve and thereby close said passage and'force the fuel through the hollow stem.

ft. A valve for combustion engines comprising a valve port leading to the cylinder of the engine, a valve cooperating with the port, a compound stem for the valve comprising a tube having a reduced end and a rod vieldingly connected to the tube and chamber surrounding the reduced end 0 the tube, said reduced endhaving a passage therethrough, a fuel supply pipe forthe chamber and means connected to the tube to actuate it and the valve.v

.5. A valve for combustion engines comprising a valvepor leading to the cylinder of the engine having a flaring entrance, a

. valve cooperating with the port, a compound stein for the valve comprising a tube having a reduced portion and a rod s ring held at one end in the tube and rigid y secured at the other, end to the valve whereby said valve normally closes the end of the tube; an oil chamber having a supply pipe, a pas sage through the reduced end of the tube connecting the'chamber and interior of the tube, means connected to the tube to operate the valve and an auxiliary scavenging valve air.

6. The combination with a combustion cylinder, of a valve seat plug mounted therein and having a flaring valve seat, a valve plug mounted in the seat plug, and a valve cotiperating with the seat and'slidably mounted in combination with means Operated by the movement of the valve to my invention, I have signed my name in deliver a quantity of fuel in rear of the valvg presence of two s ubscribing Witnesses at each lift of the alve from its seat, an a chamber behind the valve supplied With SVEN GUSTAF WIGELIU 5 air under pressure to carry the delivered fuel Witnesses:

into the cylinder. CARL FRIBERG, In testimony that I claim the foregoing as K. E. F RIBERG. 

